/* 背景样式 */
.back {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 登录容器样式 */
.login-container {
    border-radius: 15px;
    width: 350px;
    padding: 35px 35px 15px 35px;
    border: 1px solid #eaeaea;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.login-container:hover {
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    transform: translateY(-5px);
}

/* 标题样式 */
.login_title {
    margin: 0px auto 40px auto;
    text-align: center;
    color: #333;
    font-weight: bold;
    font-size: 24px;
}

/* 按钮样式 */
.el-button {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 10px 0;
    font-weight: bold;
    transition: all 0.3s ease;
    z-index: 1;
}

.el-button:hover {
    background: linear-gradient(135deg, #2575fc 0%, #6a11cb 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 输入框样式 */
.el-input {
    width: 100%;
    margin-bottom: 20px;
}

.el-input input {
    border-radius: 5px;
    border: 1px solid #ddd;
    padding: 10px 15px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.el-input input:focus {
    border-color: #2575fc;
    box-shadow: 0 0 5px rgba(37, 117, 252, 0.3);
}

/* 标签样式 */
.el-tabs {
    margin-top: 20px;
}

.el-tabs__header {
    margin: 0 0 20px;
}

.el-tabs__item {
    color: #333;
    font-weight: bold;
}

.el-tabs__item.is-active {
    color: #2575fc;
}

.el-tabs__active-bar {
    background-color: #2575fc;
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
section {
    position: fixed; /* 改为fixed确保覆盖整个视口 */
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: 1;
}
section h2{
    color: #fff;
    font-size: 8em;
    text-transform: uppercase;
}
section .set{
    position: absolute;
    width: 100%;
    height: 100%;
    top:0;
    left: 0;
    pointer-events: none;
}
section .set div{
    position: absolute;
    display: block;
}
section .set div:nth-child(1){
    left: 20%;
    animation: animate 15s linear infinite;
    animation-delay: -7s;
}
section .set div:nth-child(2){
    left: 50%;
    animation: animate 20s linear infinite;
    animation-delay: -5s;
}
section .set div:nth-child(3){
    left: 70%;
    animation: animate 20s linear infinite;
    animation-delay: 0s;
}
section .set div:nth-child(4){
    left: 0%;
    animation: animate 15s linear infinite;
    animation-delay: -5s;
}
section .set div:nth-child(5){
    left: 85%;
    animation: animate 18s linear infinite;
    animation-delay: -10s;
}
section .set div:nth-child(6){
    left: 0%;
    animation: animate 12s linear infinite;
}
section .set div:nth-child(7){
    left: 15%;
    animation: animate 14s linear infinite;
}
section .set div:nth-child(8){
    left: 60%;
    animation: animate 15s linear infinite;
}

@keyframes animate{
    0%{
        opacity: 0;
        top: -10%;
        transform: translateX(20px) rotate(0deg);
    }
    10%{
        opacity: 1;
    }
    20%{
        transform: translateX(-20px) rotate(45deg);
    }
    40%{
        transform: translateX(-20px) rotate(90deg);
    }
    60%{
        transform: translateX(20px) rotate(180deg);
    }
    80%{
        transform: translateX(-20px) rotate(180deg);
    }
    100%{
        top: 110%;
        transform: translateX(-20px) rotate(225deg);
    }
}
.set2{
    transform: scale(2) rotateY(180deg);
//filter: blur(2px);
}
.set3{
    transform: scale(0.8) rotateY(180deg);
//filter: blur(4px);
}
